What is CVE-2021-30817?

CVE-2021-30817 is a medium-severity vulnerability in Apple macOS. CVSS score: 5.5/10. Published 2021-10-28.

How severe is CVE-2021-30817?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apple macOS

CVE-2021-30817

A permissions issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.5. A malicious application may be able to access data about the accounts the user is using Family Sharing with.

EPSS: 0.006 (45.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Apple Macos — versions unspecified

References

product-security@apple.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30817?: CVE-2021-30817 is a medium-severity vulnerability in Apple macOS. CVSS score: 5.5/10. Published 2021-10-28.
How severe is CVE-2021-30817?: Medium severity. CVSS v3 base score is 5.5 out of 10.